Feature 46 add org logos

[nimishbongale]

Closes #46

• As of now, 5 images are supported, would need a css-grid to accomodate more
• Images get picked dynamically from the images folder
• Controlled by environment variables
• If more images are added, the images would auto-adjust

[maany]

Let's say that the Rucio logo is always going to be present. In addition, Let's just use 2 images, REACT_APP_login_page_image_primary and REACT_APP_login_page_image_secondary.
We can render all images in the order ( L-R) in a single row : primary -> rucio_logo -> secondary
@bari12 @cserf @mlassnig any comments?

[nimishbongale]

Sounds good to me, made the changes!

[maany]

Thanks a lot @nimishbongale , It's cool to support up to 5 images, but I believe we could keep it a bit simpler. ( Also presenting too many configuration options to the end-users might not play well for a user PoV)

[nimishbongale]

Thanks a lot @nimishbongale , It's cool to support up to 5 images, but I believe we could keep it a bit simpler. ( Also presenting too many configuration options to the end-users might not play well for a user PoV)

Makes sense.

We decided upon supporting 2/3 images, one secondary and one primary, which would both come on the same line, and for now I could add the ATLAS logo for the secondary logo image.

[nimishbongale]

(ATLAS image as primary)

(ATLAS as secondary)

(ATLAS as primary+secondary)